/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.datastax.driver.core;

import static org.testng.Assert.assertEquals;
import static org.testng.Assert.fail;
import org.testng.annotations.Test;

public class StreamIdGeneratorTest {

    @Test(groups = "unit")
    public void SimpleGenIdTest() throws Exception {

        StreamIdGenerator generator = new StreamIdGenerator();

        assertEquals(generator.next(), 0);
        assertEquals(generator.next(), 1);
        generator.release(0);
        assertEquals(generator.next(), 0);
        assertEquals(generator.next(), 2);
        assertEquals(generator.next(), 3);
        generator.release(1);
        assertEquals(generator.next(), 1);
        assertEquals(generator.next(), 4);

        for (int i = 5; i < 128; i++)
            assertEquals(generator.next(), i);

        generator.release(100);
        assertEquals(generator.next(), 100);

        try {
            generator.next();
            fail("No more streamId should be available");
        } catch (BusyConnectionException e) {
            // Ok, expected
        }
    }
}
